Electron Beam Analysis of the Properties of Molecular Nitrogen and Nitric Oxide in the AFFDL 2-Foot Electrogasdynamics Facility
Abstract
The electron beam fluorescence technique was used to measure the vibrational temperature and number density of molecular nitrogen and nitric oxide at the exit of the 7-inch conical nozzle of the Air Force Flight Dynamics Laboratory 2-Foot Electrogasdynamics Facility. In addition, the vibrational temperature and species concentration of nitric oxide were measured at the exit of the 19-inch conical nozzle. Theoretical results assuming finite-rate chemical nonequilibrium were compared with the experimental data. The excitation- emission mechanisms for electron beam excitation of the NO gamma system in No- air and NO-nitrogen mixtures were investigated and it is shown that the excitation is dominated by secondary electrons resulting from beam-induced ionization of molecular nitrogen. Reasons for the discrepancies between the theoretical and experimental results were examined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1974
- Accession Number
- AD0779087
Entities
People
- J. J. Komar
- S. L. Petrie
Organizations
- Ohio State University